INDEX. 395 



Instinct, physiological aspect of, 52; as hereditary memory, 113-17, 131 ; 

 definition of, 159; involves a mental element, ICO; perfection of, 

 160-7 ; in voung birds and mammals, 161-5; in insects, 165-8, 179, 

 201-2, 203-9, 220-1, 277-81, 285-6, 290-5, 297, 303-8; of flying, 165; 

 imperfection of, 167-76; as affected by interruption of normal con- 

 Tcrse with environment, 169-72, by castration, 171-2, by insanity, 

 173-4; trivial and useless, 176; origin and development of, 177-U9 ; 

 primary, 180-92; secondary, 192-9; effects of crossing upon, 198-9; 

 blended origin or plasticity of, 200-218 ; of nidification, 210-12 ; of 

 incubation, 177, 212-13 ; maternal, 212-18 ; as moulded by imita- 

 tion, 219-25, by education, 226-9, and by domestication, 230-42; of 

 singing in birds, 222-3 ; of attacking rabbits in ferrets, 228 ; of drinking 

 in fowls, 229; local and specific varieties of, 243-55; not fossilized, 

 2.",0, 254-5 ; evidence of transformation yielded by specific varieties 

 of, 250-5 ; views of other writers on evolution of, 256-72 ; general sum- 

 mary on and diagram of development of, 265-72 ; cases of special diffi- 

 culty in display of, 273-317 ; similar in unallicd animals, 273-4; dis- 

 similar in allied animals, 274; trivial and useless, 274-6; apparently 

 detrimental, 276-85 ; alleged, of scorpion in committing suicide, 278; of 

 flying through llaine, 278-80; of hen cackling, pheasant crowing, shrew- 

 mouse screaming, &c, 280-1 ; of migration injurious, 281-5 ; of lemming, 

 282 5; of migration, 285-97 ; of neuter insects, 265, 297-9 ; ofsphex, 

 299-303; of feigning death, 303-16 j of feigning injury, 316-17; in 

 relation to reason, 338-9. 



Jackson, C. J., on instinct of the Californian woodpecker, 255. 



Jackson, Dr. J. Hughlings, on pre-perception, 139. 



Jealousy, 841, 315. 



Jeens, 0. If., on a puppy learning to imitate a cat, 224. 



Jelli -fishes. - s " .)/• I usee. 



Jordan, on birds dreaming, 149. 



Jesse, on changed instincts of a hen, 215; on snakes feigning death, 305. 



Kataplixy. Srr Hypnotism. 



Kidd, W ., on diversity of disposition in larks and canaries, 182. 



King*]*} . (anon, on munition of birds, 2'J6. 



Kirtiv, on modified instincts of larrss, 180. 



hirbv and spiinc-. on larva re m e m bering the taste of particular leaves, 115; 



on instincts of insects, 166, 167, 17;» BO, 801, 804 B, 844, 846. 

 Kittens, instincts of, 164 5, 172. 

 Knight, Andrew, on bereditarj transmission of acquired mental endowments 



in animals, l'.'."., l . < 7 . 1 88, 2:t7, 'S-ib -, on intelligence of a bird, 801, and 



of bees, 806. 

 Knox, l '• 1 ■■■. on a variation in nest*building of tin- golden eagle, I s -' 

 h nr«. on dili-tiiiim-tiini' m pe r ce pti on, 184 B 

 Kuszmaul, Professor, on infants preferring sweet t.i-tr*, 115. 



